{"title":"再生铝箔废弃物衍生的纳米氧化铝吸附剂：处理含酚废水的环保解决方案。","authors":"Sara B. Babili, Amina BiBi, Mohammad A. Al-Ghouti","doi":"10.1186/s13065-025-01612-0","DOIUrl":null,"url":null,"abstract":"<div><p>This study explored the potential of repurposing domestic foil waste to synthesize nano-aluminum oxide (nano-γ-Al<sub>2</sub>O<sub>3</sub>) for effective phenol removal from wastewater. The synthesized nano-aluminum oxide was comprehensively characterized using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy-dispersive X-ray (EDX) spectroscopy, Brunauer-Emmett-Teller (BET) surface area analysis, and Fourier-transform Infrared Spectroscopy (FTIR). Characterization revealed functional groups including C = O, C–H, C–O, O–H, and C–C, which facilitate phenol adsorption on the material surface. Batch studies evaluated factors such as initial phenol concentration, pH, temperature, and desorption efficiency. Optimal phenol removal was achieved at pH 8.0 with a maximum adsorption capacity (q<sub>max</sub>) of 48.54 mg/g at 35 °C. The thermodynamic analysis indicated a spontaneous and exothermic adsorption process, with ΔH° of -77.6 kJ/mol and ΔS° of 232.2 J/mol·K. The adsorption was attributed to non-covalent interactions between the highest occupied molecular orbital (HOMO) of phenol and the lowest unoccupied molecular orbital (LUMO) of nano-γ-Al<sub>2</sub>O<sub>3</sub>. In addition, the adsorbent demonstrated effective regeneration using NaOH and effectively removed phenol in real wastewater samples. These findings highlight the potential of waste-derived nano-adsorbents as sustainable solutions for wastewater treatment.</p></div>","PeriodicalId":496,"journal":{"name":"BMC Chemistry","volume":"19 1","pages":""},"PeriodicalIF":4.3000,"publicationDate":"2025-09-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://bmcchem.biomedcentral.com/counter/pdf/10.1186/s13065-025-01612-0","citationCount":"0","resultStr":"{\"title\":\"Recycled aluminum foil waste-derived nano-aluminum oxide adsorbent: an eco-friendly solution for treating phenolic wastewater\",\"authors\":\"Sara B. Babili, Amina BiBi, Mohammad A. Al-Ghouti\",\"doi\":\"10.1186/s13065-025-01612-0\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"<div><p>This study explored the potential of repurposing domestic foil waste to synthesize nano-aluminum oxide (nano-γ-Al<sub>2</sub>O<sub>3</sub>) for effective phenol removal from wastewater. The synthesized nano-aluminum oxide was comprehensively characterized using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy-dispersive X-ray (EDX) spectroscopy, Brunauer-Emmett-Teller (BET) surface area analysis, and Fourier-transform Infrared Spectroscopy (FTIR). Characterization revealed functional groups including C = O, C–H, C–O, O–H, and C–C, which facilitate phenol adsorption on the material surface. Batch studies evaluated factors such as initial phenol concentration, pH, temperature, and desorption efficiency. Optimal phenol removal was achieved at pH 8.0 with a maximum adsorption capacity (q<sub>max</sub>) of 48.54 mg/g at 35 °C. The thermodynamic analysis indicated a spontaneous and exothermic adsorption process, with ΔH° of -77.6 kJ/mol and ΔS° of 232.2 J/mol·K. The adsorption was attributed to non-covalent interactions between the highest occupied molecular orbital (HOMO) of phenol and the lowest unoccupied molecular orbital (LUMO) of nano-γ-Al<sub>2</sub>O<sub>3</sub>. In addition, the adsorbent demonstrated effective regeneration using NaOH and effectively removed phenol in real wastewater samples. These findings highlight the potential of waste-derived nano-adsorbents as sustainable solutions for wastewater treatment.</p></div>\",\"PeriodicalId\":496,\"journal\":{\"name\":\"BMC Chemistry\",\"volume\":\"19 1\",\"pages\":\"\"},\"PeriodicalIF\":4.3000,\"publicationDate\":\"2025-09-30\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"https://bmcchem.biomedcentral.com/counter/pdf/10.1186/s13065-025-01612-0\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"BMC Chemistry\",\"FirstCategoryId\":\"92\",\"ListUrlMain\":\"https://link.springer.com/article/10.1186/s13065-025-01612-0\",\"RegionNum\":2,\"RegionCategory\":\"化学\",\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"Q2\",\"JCRName\":\"CHEMISTRY, MULTIDISCIPLINARY\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"BMC Chemistry","FirstCategoryId":"92","ListUrlMain":"https://link.springer.com/article/10.1186/s13065-025-01612-0","RegionNum":2,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"Q2","JCRName":"CHEMISTRY, MULTIDISCIPLINARY","Score":null,"Total":0}
Recycled aluminum foil waste-derived nano-aluminum oxide adsorbent: an eco-friendly solution for treating phenolic wastewater
This study explored the potential of repurposing domestic foil waste to synthesize nano-aluminum oxide (nano-γ-Al2O3) for effective phenol removal from wastewater. The synthesized nano-aluminum oxide was comprehensively characterized using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM), Energy-dispersive X-ray (EDX) spectroscopy, Brunauer-Emmett-Teller (BET) surface area analysis, and Fourier-transform Infrared Spectroscopy (FTIR). Characterization revealed functional groups including C = O, C–H, C–O, O–H, and C–C, which facilitate phenol adsorption on the material surface. Batch studies evaluated factors such as initial phenol concentration, pH, temperature, and desorption efficiency. Optimal phenol removal was achieved at pH 8.0 with a maximum adsorption capacity (qmax) of 48.54 mg/g at 35 °C. The thermodynamic analysis indicated a spontaneous and exothermic adsorption process, with ΔH° of -77.6 kJ/mol and ΔS° of 232.2 J/mol·K. The adsorption was attributed to non-covalent interactions between the highest occupied molecular orbital (HOMO) of phenol and the lowest unoccupied molecular orbital (LUMO) of nano-γ-Al2O3. In addition, the adsorbent demonstrated effective regeneration using NaOH and effectively removed phenol in real wastewater samples. These findings highlight the potential of waste-derived nano-adsorbents as sustainable solutions for wastewater treatment.
期刊介绍：
BMC Chemistry, formerly known as Chemistry Central Journal, is now part of the BMC series journals family.
Chemistry Central Journal has served the chemistry community as a trusted open access resource for more than 10 years – and we are delighted to announce the next step on its journey. In January 2019 the journal has been renamed BMC Chemistry and now strengthens the BMC series footprint in the physical sciences by publishing quality articles and by pushing the boundaries of open chemistry.
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